Tread portion of motorcycle tire



FIG. 1 is a perspective view of a tread portion of a motorcycle tire showing the new design;

FIG. 2 is a front view thereof;

FIG. 3 is a left side view thereof;

FIG. 4 is an end view taken along line 4—4 in FIG. 2; and,

FIG. 5 is a fragmentary enlarged view showing the details of the tread portion thereof.

The surface elements show recessed grooves having the depth illustrated along the top edge of FIG. 4.

The broken line disclosure of the sidewall and inner bead form no part of the claimed design. 

The ornamental design for tread portion of a motorcycle tire, as described above and shown in the drawings. 